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GB Water Supplier Sustaining Valve

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Min. Order:	1

Basic Info

Model No.: Sl500-X

Product Description

Model NO.: Sl500-X
Transport Package: Plywood Packing
Origin: Shanghai China

Trademark: KQ
Specification: ISO Quality Management System
HS Code: 8481804090

Pressure Sustaining Valve

Description:
The valve instantly opens when the pressure in the pipeline exceeds the preset safe level, thus relieving excessive pressure from the pipeline. When the pressure returns to normal, the valve closes slowly, at an adjustable speed. The valves also can be used to sustain upstream pressure to a preset pressure value.

The pressure sustaining valve is mainly used in fire fighting or other water supply systems to prevent the occurrence of over pressure or maintain the pressure of a fire fighting water supply system. After the fire pump is shut down, the valves can also serve to reduce the impact caused by water hammer. It can also be used as the water hammer eliminating device in large water supply systems. The valve utilizes a self-cleaning screen installed at the inlet of the valves control system, so suspended particles of relatively big specific gravities and diameters can not enter the control system. This guarantees the smooth and unobstructed circulation of the system, thereby ensuring the safe and reliable operation of the valve.

Technical Specification
Flange connection dimension: GB/T 17241.6-1998, GB/T 9113.1-2000
Nominal pressure: PN0.6MPa, PN1.0MPa, PN1.6MPa, PN2.5MPa
Nominal diameter: DN20~450mm
Suitable medium: Water
Inspection and test: GB/T 13927, API598
Body material: Cast iron, Ductile cast iron

Technical Specification					Typical Installation Diagram
Nominal Pressure:1.0~1.6MPa
DN:40~450mm
Medium: water
Work temperature: 0~80
Design Standard:BS5163
Flange Standard:BS EN 1092
OTHER STANDARD ARE AVAILABLE UPON REQUEST.

Part Material
PART NAME					Material
Body & Bonnet					Pray Cast Iron, Ductile Cast Iron ,Cast Steel
Seat & Bushing & Disc					Bronze
Stem & Spring					Stainless Steel
Diaphragm & O-ring					NBR or EPDM
Seal Ring					PTFE

Dimension Unit:mm
DN 40 50 65 80 100 125 150 200 250 300 350 400 450
L 200 203 216 241 292 330 356 495 622 698 787 914 978
H1 516 516 520 537 596 653 709 805 855 953 990 1030 1030
H 610 610 625 642 750 808 864 1135 1185 1325 1385 1445 1445

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Product Categories : Control Valve

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